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New expf and exp2f version without SVID compat wrapper

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This patch changes the expf and exp2f error handling semantics to only
set errno accoring to POSIX rules. New symbol version is introduced at
GLIBC_2.27.

The old wrappers are kept for compat symbols.

Internal calls to __expf now get the new error semantics, this seems to
only affect sysdeps/i386/fpu/s_expm1f.S where the errno-only behaviour
should be correct.

ia64 needed assembly change to have the new and compat versioned symbol
map to the same function.

All linux libm abilists are updated.

	* math/Versions (expf): New libm symbol at GLIBC_2.27.
	(exp2f): Likewise.
	* math/w_exp2f.c: New file.
	* math/w_expf.c: New file.
	* math/w_exp2f_compat.c (__exp2f_compat): For compat symbol only.
	* math/w_expf_compat.c (__expf_compat): Likewise.
	* sysdeps/ia64/fpu/e_exp2f.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_expf.S: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
This commit is contained in:
Szabolcs Nagy 2017-09-12 12:20:50 +01:00
parent 72aa623345
commit f5f0f52651
34 changed files with 158 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
ChangeLog
View File

@ -1,3 +1,46 @@
2017-09-25 Szabolcs Nagy <szabolcs.nagy@arm.com>
* math/Versions (expf): New libm symbol at GLIBC_2.27.
(exp2f): Likewise.
* math/w_exp2f.c: New file.
* math/w_expf.c: New file.
* math/w_exp2f_compat.c (__exp2f_compat): For compat symbol only.
* math/w_expf_compat.c (__expf_compat): Likewise.
* sysdeps/ia64/fpu/e_exp2f.S: Add versioned symbols.
* sysdeps/ia64/fpu/e_expf.S: Likewise.
* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2017-09-25 Szabolcs Nagy <szabolcs.nagy@arm.com>
* math/Makefile (type-float-routines): Add math_errf and e_exp2f_data.

3
math/Versions
View File

@ -229,4 +229,7 @@ libm {
fromfp; fromfpf; fromfpl; ufromfp; ufromfpf; ufromfpl;
fromfpx; fromfpxf; fromfpxl; ufromfpx; ufromfpxf; ufromfpxl;
}
GLIBC_2.27 {
expf; exp2f;
}
}

7
math/w_exp2f.c Normal file
View File

@ -0,0 +1,7 @@
#include <math-type-macros-float.h>
#undef __USE_WRAPPER_TEMPLATE
#define __USE_WRAPPER_TEMPLATE 1
#undef declare_mgen_alias
#define declare_mgen_alias(a, b)
#include <w_exp2_template.c>
versioned_symbol (libm, __exp2f, exp2f, GLIBC_2_27);

6
math/w_exp2f_compat.c
View File

@ -6,9 +6,9 @@
#include <math_private.h>
#include <math-svid-compat.h>
#if LIBM_SVID_COMPAT
#if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27)
float
__exp2f (float x)
__exp2f_compat (float x)
{
float z = __ieee754_exp2f (x);
if (__builtin_expect (!isfinite (z) || z == 0, 0)
@ -18,5 +18,5 @@ __exp2f (float x)
return z;
}
weak_alias (__exp2f, exp2f)
compat_symbol (libm, __exp2f_compat, exp2f, GLIBC_2_1);
#endif

7
math/w_expf.c Normal file
View File

@ -0,0 +1,7 @@
#include <math-type-macros-float.h>
#undef __USE_WRAPPER_TEMPLATE
#define __USE_WRAPPER_TEMPLATE 1
#undef declare_mgen_alias
#define declare_mgen_alias(a, b)
#include <w_exp_template.c>
versioned_symbol (libm, __expf, expf, GLIBC_2_27);

7
math/w_expf_compat.c
View File

@ -20,10 +20,10 @@
#include <math_private.h>
#include <math-svid-compat.h>
#if LIBM_SVID_COMPAT
#if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_27)
/* wrapper expf */
float
__expf (float x)
__expf_compat (float x)
{
float z = __ieee754_expf (x);
if (__builtin_expect (!isfinite (z) || z == 0, 0)
@ -32,6 +32,5 @@ __expf (float x)
return z;
}
hidden_def (__expf)
weak_alias (__expf, expf)
compat_symbol (libm, __expf_compat, expf, GLIBC_2_0);
#endif

10
sysdeps/ia64/fpu/e_exp2f.S
View File

@ -221,7 +221,7 @@ LOCAL_OBJECT_END(T_table)
.section .text
GLOBAL_LIBM_ENTRY(exp2f)
GLOBAL_LIBM_ENTRY(__exp2f)
{.mfi
@ -468,7 +468,13 @@ OUT_RANGE_exp2:
}
;;
GLOBAL_LIBM_END(exp2f)
GLOBAL_LIBM_END(__exp2f)
#ifdef SHARED
.symver __exp2f,exp2f@@GLIBC_2.27
.weak __exp2f_compat
.set __exp2f_compat,__exp2f
.symver __exp2f_compat,exp2f@GLIBC_2.2
#endif
LOCAL_LIBM_ENTRY(__libm_error_region)

6
sysdeps/ia64/fpu/e_expf.S
View File

@ -657,6 +657,12 @@ EXP_UNDERFLOW_ZERO:
;;
GLOBAL_IEEE754_END(expf)
#ifdef SHARED
.symver expf,expf@@GLIBC_2.27
.weak __expf_compat
.set __expf_compat,__expf
.symver __expf_compat,expf@GLIBC_2.2
#endif
LOCAL_LIBM_ENTRY(__libm_error_region)

3
sysdeps/unix/sysv/linux/aarch64/libm.abilist
View File

@ -460,3 +460,6 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F

3
sysdeps/unix/sysv/linux/alpha/libm.abilist
View File

@ -470,6 +470,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.3.4 GLIBC_2.3.4 A
GLIBC_2.3.4 __c1_cabsf F
GLIBC_2.3.4 __c1_cacosf F

3
sysdeps/unix/sysv/linux/arm/libm.abilist
View File

@ -117,6 +117,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 _LIB_VERSION D 0x4
GLIBC_2.4 __clog10 F

3
sysdeps/unix/sysv/linux/hppa/libm.abilist
View File

@ -429,5 +429,8 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 exp2l F

3
sysdeps/unix/sysv/linux/i386/libm.abilist
View File

@ -611,4 +611,7 @@ GLIBC_2.26 ufromfpxf128 F
GLIBC_2.26 y0f128 F
GLIBC_2.26 y1f128 F
GLIBC_2.26 ynf128 F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A

3
sysdeps/unix/sysv/linux/ia64/libm.abilist
View File

@ -540,4 +540,7 @@ GLIBC_2.26 ufromfpxf128 F
GLIBC_2.26 y0f128 F
GLIBC_2.26 y1f128 F
GLIBC_2.26 ynf128 F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A

3
sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
View File

@ -117,6 +117,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 _LIB_VERSION D 0x4
GLIBC_2.4 __clog10 F

3
sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
View File

@ -471,4 +471,7 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A

3
sysdeps/unix/sysv/linux/microblaze/libm.abilist
View File

@ -428,3 +428,6 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F

3
sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
View File

@ -430,6 +430,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 exp2l F
_gp_disp _gp_disp A

3
sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
View File

@ -462,4 +462,7 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A

3
sysdeps/unix/sysv/linux/nios2/libm.abilist
View File

@ -428,3 +428,6 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F

3
sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
View File

@ -473,6 +473,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

3
sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
View File

@ -472,6 +472,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

3
sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
View File

@ -605,3 +605,6 @@ GLIBC_2.26 ufromfpxf128 F
GLIBC_2.26 y0f128 F
GLIBC_2.26 y1f128 F
GLIBC_2.26 ynf128 F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F

3
sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
View File

@ -148,6 +148,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.3 GLIBC_2.3 A
GLIBC_2.3 _LIB_VERSION D 0x4
GLIBC_2.3 __clog10 F

3
sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
View File

@ -460,6 +460,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

3
sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
View File

@ -458,6 +458,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

3
sysdeps/unix/sysv/linux/sh/libm.abilist
View File

@ -429,5 +429,8 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 exp2l F

3
sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
View File

@ -464,6 +464,9 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

3
sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
View File

@ -461,4 +461,7 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A

3
sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist
View File

@ -429,3 +429,6 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F

3
sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist
View File

@ -429,3 +429,6 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F

3
sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist
View File

@ -429,3 +429,6 @@ GLIBC_2.25 ufromfpl F
GLIBC_2.25 ufromfpx F
GLIBC_2.25 ufromfpxf F
GLIBC_2.25 ufromfpxl F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F

3
sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
View File

@ -600,4 +600,7 @@ GLIBC_2.26 ufromfpxf128 F
GLIBC_2.26 y0f128 F
GLIBC_2.26 y1f128 F
GLIBC_2.26 ynf128 F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F
GLIBC_2.4 GLIBC_2.4 A

3
sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
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@ -599,3 +599,6 @@ GLIBC_2.26 ufromfpxf128 F
GLIBC_2.26 y0f128 F
GLIBC_2.26 y1f128 F
GLIBC_2.26 ynf128 F
GLIBC_2.27 GLIBC_2.27 A
GLIBC_2.27 exp2f F
GLIBC_2.27 expf F